SPY Dirk prescription sunglasses say it all in the name. Simple, yet badass, the Dirk just looks dangerous with its bold and wide wraparound frame. Built from shatter-resilient Grilamid and a built-in hinge system, the Dirk prescription frame is one tough pair of shades. Need a tough pair of SPY sunglasses in prescription? We've got you covered with custom prescription lenses for amazing vision in your SPY Dirk prescription sunglasses.